/*
* $Id: StrutsObjectFactory.java 667722 2008-06-14 02:38:06Z mrdon $
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
// Copyright 2006 Google Inc. All Rights Reserved.
package org.apache.struts2.impl;
import com.opensymphony.xwork2.ObjectFactory;
import com.opensymphony.xwork2.Result;
import com.opensymphony.xwork2.config.ConfigurationException;
import com.opensymphony.xwork2.config.entities.InterceptorConfig;
import com.opensymphony.xwork2.config.entities.ResultConfig;
import com.opensymphony.xwork2.interceptor.Interceptor;
import java.util.HashMap;
import java.util.Map;
public class StrutsObjectFactory extends ObjectFactory {
public Interceptor buildInterceptor(InterceptorConfig interceptorConfig, Map refParams)
throws ConfigurationException {
String className = interceptorConfig.getClassName();
Map<String, String> params = new HashMap<String, String>();
Map typeParams = interceptorConfig.getParams();
if (typeParams != null && !typeParams.isEmpty())
params.putAll(typeParams);
if (refParams != null && !refParams.isEmpty())
params.putAll(refParams);
try {
// interceptor instances are long-lived and used across user sessions, so don't try to pass in any extra
// context
Object o = buildBean(className, null);
reflectionProvider.setProperties(params, o);
if (o instanceof Interceptor) {
Interceptor interceptor = (Interceptor) o;
interceptor.init();
return interceptor;
}
// This is for the new API:
// if (o instanceof org.apache.struts2.spi.Interceptor)
// return new InterceptorAdapter((org.apache.struts2.spi.Interceptor) o);
throw new ConfigurationException(
"Class [" + className + "] does not implement Interceptor", interceptorConfig);
} catch (InstantiationException e) {
throw new ConfigurationException(
"Unable to instantiate an instance of Interceptor class [" + className + "].",
e, interceptorConfig);
} catch (IllegalAccessException e) {
throw new ConfigurationException(
"IllegalAccessException while attempting to instantiate an instance of Interceptor class ["
+ className + "].",
e, interceptorConfig);
} catch (Exception e) {
throw new ConfigurationException(
"Caught Exception while registering Interceptor class " + className,
e, interceptorConfig);
} catch (NoClassDefFoundError e) {
throw new ConfigurationException(
"Could not load class " + className
+ ". Perhaps it exists but certain dependencies are not available?",
e, interceptorConfig);
}
}
}
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